wp_save_image( int $post_id ): stdClass

904function wp_save_image( $post_id ) {905	$_wp_additional_image_sizes = wp_get_additional_image_sizes();906 907	$return  = new stdClass();908	$success = false;909	$delete  = false;910	$scaled  = false;911	$nocrop  = false;912	$post    = get_post( $post_id );913 914	$img = wp_get_image_editor( _load_image_to_edit_path( $post_id, 'full' ) );915 916	if ( is_wp_error( $img ) ) {917		$return->error = esc_js( __( 'Unable to create new image.' ) );918		return $return;919	}920 921	$full_width  = ! empty( $_REQUEST['fwidth'] ) ? (int) $_REQUEST['fwidth'] : 0;922	$full_height = ! empty( $_REQUEST['fheight'] ) ? (int) $_REQUEST['fheight'] : 0;923	$target      = ! empty( $_REQUEST['target'] ) ? preg_replace( '/[^a-z0-9_-]+/i', '', $_REQUEST['target'] ) : '';924	$scale       = ! empty( $_REQUEST['do'] ) && 'scale' === $_REQUEST['do'];925 926	/** This filter is documented in wp-admin/includes/image-edit.php */927	$edit_thumbnails_separately = (bool) apply_filters( 'image_edit_thumbnails_separately', false );928 929	if ( $scale ) {930		$size            = $img->get_size();931		$original_width  = $size['width'];932		$original_height = $size['height'];933 934		if ( $full_width > $original_width || $full_height > $original_height ) {935			$return->error = esc_js( __( 'Images cannot be scaled to a size larger than the original.' ) );936			return $return;937		}938 939		if ( $full_width > 0 && $full_height > 0 ) {940			// Check if it has roughly the same w / h ratio.941			$diff = round( $original_width / $original_height, 2 ) - round( $full_width / $full_height, 2 );942			if ( -0.1 < $diff && $diff < 0.1 ) {943				// Scale the full size image.944				if ( $img->resize( $full_width, $full_height ) ) {945					$scaled = true;946				}947			}948 949			if ( ! $scaled ) {950				$return->error = esc_js( __( 'Error while saving the scaled image. Please reload the page and try again.' ) );951				return $return;952			}953		}954	} elseif ( ! empty( $_REQUEST['history'] ) ) {955		$changes = json_decode( wp_unslash( $_REQUEST['history'] ) );956		if ( $changes ) {957			$img = image_edit_apply_changes( $img, $changes );958		}959	} else {960		$return->error = esc_js( __( 'Nothing to save, the image has not changed.' ) );961		return $return;962	}963 964	$meta         = wp_get_attachment_metadata( $post_id );965	$backup_sizes = get_post_meta( $post->ID, '_wp_attachment_backup_sizes', true );966 967	if ( ! is_array( $meta ) ) {968		$return->error = esc_js( __( 'Image data does not exist. Please re-upload the image.' ) );969		return $return;970	}971 972	if ( ! is_array( $backup_sizes ) ) {973		$backup_sizes = array();974	}975 976	// Generate new filename.977	$path = get_attached_file( $post_id );978 979	$basename = pathinfo( $path, PATHINFO_BASENAME );980	$dirname  = pathinfo( $path, PATHINFO_DIRNAME );981	$ext      = pathinfo( $path, PATHINFO_EXTENSION );982	$filename = pathinfo( $path, PATHINFO_FILENAME );983	$suffix   = time() . rand( 100, 999 );